1 uk long hundredweight (uk cwt) = 50802345440 microgram (mcg).
Uk Long Hundredweight (uk cwt) is a unit of Weight used in Standard system.
Microgram (mcg) is a unit of Weight used in Metric system.
Hundredweight also can be marked as Centum Weight, abbreviation: cwt. Micrograms also can be marked as Microgrammes or µg (alternative British English spelling in UK).